Stove attachment



v Patented Feb. 2!, I899. F. W. WINNER & T. F. MARTIN.

STOVE ATTACHMENT.

, (Applicatiun filed Apr. 6, 1898.1 (NaModaL) 2 Sheets-Sheet l.

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(No Modem Patented Feb. 2|, I899.

F. W. WINNER & T. F. MARTIN. STOVE ATTACHMENT.

(Application filed Apr. 6, 1898.\

2 Sheets-Sheat 2.

m: News PETERS OOQNOYU-UYNOV NASHINOTON. 0.1:.

UNITED STATES PATENT OFFICE.

FREDERICK W. WINNER AND TORRENCE F. MARTIN, OF CARMI, ILLINOIS.

STOVE ATTACH M ENT.

SPECIFICATION forming part of Letters Patent No. 619,919, dated February21, 1899.

Application filed April 6,1898. $erial No. 677,104. (No model.)

To all whom it may concern:

Be it known that we, FREDERICK W. WIN- NER and TORRENCE F. MARTIN,citizens of the United States,residing at Oarmi, in the county of Whiteand State of Illinois, have invented certain new and useful Improvementsin Stove Attachments; and we do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

Our invention relates to stove construction and is designed moreparticularly as an adjunct to that variety having no ash-pit and whereinwood is used as fuel.

The object of our invention, among others, is to provide means forintroducing a uniform draft throughout the fire-box, whereby thecombustion will be more perfect and will not be confined to the forwardend of the stove, as is now the case in stoves of the usualconstruction.

In carrying out our invention we incidentally provide means forsuperheating the draft-air before it is introduced into thecombustionchamber.

These and other results will be made fully apparent in the followingspecification, considered in connection with the accompanying drawings,made a part of this application, in which Figure 1 is a vertical centralsection of a stove, showing our improved attachment applied to use. Fig.2 is a transverse vertical section thereof on line m m. Fig. 3 is adetail showing our improved attachment in side elevation. Fig. 4 is anend view of Fig. 3, taken from the right side. Fig. 5 is a horizontalsection of Fig. 4 on line 1 3 Briefly stated, our invention may be saidto consist in providing an attachment designed to form the fire-box orlining of a stove of the usual or any preferred construction, which isprovided with a series of graduated apertures and flanges or 'ribsdesigned to control and direct the draft to the desired point.

Referring in detail to the several parts of our invention and theaccessories deemed necessary to illustrate the use thereof, 1 is thebody of a wood-burning stove of the usual construction, the same beingprovided with the damper constructed as indicated by numeral 2 or in anyway deemed most acceptable, and further provided with the lid 3 forintroducing the fuel and having the pipethroat 4. From this constructionit will be clear that without the cooperation of our improved attachmentor fire-box the draft would enter the damper 2 and thence take a directcourse to the pipe-throat 4, thus leaving the rear part of the stovepractically unafiected by the draft, and thus render it necessary forthe attendant to constantly draw the fuel forward. It is for the purposeof avoiding the necessity of thus replacing or moving the fuel to theforward part of the stove that we provide our attachment, as by the useuse there of we introduce the draft in graduated predeterminedquantities radially throughout the entire surface of the fire-box, andthereby insure thatthe combustion will be equal at all points therein,thus rendering it entirely .unnecessary to replace the fuel after it hasbeen placed within the combustion-chamber.

Our fire-box consists of the Wall or collar 5, which is concentricallyplaced within the body of a stove, and being of less diameter than saidbody an annular space is provided extending entirely around thefire-box, which chamber may be divided into two separate ohambersasindicated, 6 and 7-by means of the radial flange 8, or said flange maybe omitted, and thus leave one chamber surrounding the fire-box.

Integrally formed with the wall of the firebox 5 or otherwise securedthereto is the radial flange 9, which we prefer to incline slightlyupward in order that ashes or cinders will always be directed into thecombustion-chamber and prevented from falling into either of thechambers 6 or 7.

When our improved fire-box is provided with the partition formed by theradial rib or flange 8, it will be seen that the lower annular chamber 7only is in direct communication with the damper 2, and in order that thedraft may pass into the annular chamber 6 we cut away the flange 8 uponthe rear side thereof, as indicated by the opening 10 in Figs. 4 and 5.The opening thus provided permits the draft to pass upward into theannular or upper chamber 6, and from thence it is introduced into thecombustion-chamber by means of the series of apertures 11, which, itwill be observed, are graduated in size, the smallest apertures beinglocated in the rear end of the chamber 6 and graduallyincrease in sizeuntil the largest apertures are disposed in the forward end thereof, theresult being that the draft will enter through the damper 2, and thencepass around the Wall of the fire-box under the flange 8 until the opensection 10 is reached, when it will extend upward and thence pass intothe annular chamher 6 and take the direction of the least resistance, asmall portion of it entering the small apertures nearest the opensection 10, while the larger portion thereof will pass around thefire-box and into the sainethrough the larger apertures located in theforward end thereof, as will be readily apparent. The air when passingaround the fire-box, it will be clearly understood, becomes more or lessheated and is thus in a better condition to insure perfect combustion.

By making the flanges S and 9 of a greater diameter than the interior ofthe body of the stove the fire-box thus provided will readily fit intostoves of varying sizes, since said flanges may be left in an inclinedposition. All that is necessary in order to insure a perfect fit ofthese parts is that the outer edges of said flanges may be forceddownward sufficiently to insure close contact with the interior wall ofthe body of the stove, though it is thought that the natural resiliencyof the flanges will cause them to spring outward into engagement withthe inner surface of the stove-body, and thereby produce a tight andperfect fit, it being understood that the entire fire-box and theflanges thereof are preferably formed of suitable sheet metal. It willbe apparent that satisfactory results will follow should the centralflange 8 be entirely omitted, in which case we prefer to locate thegraduations in the upper edge of the fire box or wall 5, though wesimply reverse the position of the smaller and larger holes, the smallerapertures being located in the forward end, while the larger ones arelocated toward the rear end thereof, and it will be clear that the drafttaking the point ofleast resistance will enter the larger apertures inthe rear portion and also the smaller ones in the forward end, thusproviding a uniform radial draft for the interior part of the firebox,each aperture directing its portion of the draft substantially towardthe center of the fire-box, thus insuring perfect combustion of thecontents of the fire-box without any further attention on the part ofthe attendant, it being understood that the amount of draft permitted toenter the stove is to be controlled in the usual way by the damper 2.

It will be seen that we have provided a complete article of manufacturewhich may be readily introduced into the interior of a stove and asreadily removed therefrom when it is desirable to repair or replace thesame, and, believing that the advantages and use of our invention havebeen made fully apparent from the foregoing description, we willdispense with further reference to the details thereof.

Having thus f nlly described our invention,

what we claim as new and desire to secure by Letters Patent, is-

1. The hereindescribed attachment for stoves consisting of a removablechamberdesigned to fit concentrically within the body of a stove andhaving yielding flanges and a series of graduated openings, the lowerflange being entirely cut away upon its rear side to provide an openingwhich will permit the draft to pass from thelower chamber formed by saidflange, to the upper chamber extendin g around said fire-box betweensaid flanges, said graduated openings being located between the upperand lower flanges and designed to introduce the draft into thecombustion chamber in increasing quantities from rear to front, asspecified and for the purpose set forth.

2. As an article of manufacture, a remov-' able integrally-formedfire-box consisting of the body-section proper, a flange attached to theupper edge of said body and extending outward in an upwardly-inclineddirection, a horizontally-disposed flange located midway upon the outerside of said body-section, whereby two annular chambers will be formedaround the fire-box, both of said flanges being of greater extent thanthe interior diameter of the stove and of resilient material, said lowerflange being entirely cut away upon its rear end to providecommunication between the annular chambers formed around the fire-box bysaid flanges, and a series of apertures formed in the body between theupper and the lower flanges, the smallest aperture beginning at the rearside of the body and gradually increasing toward the front side thereof,substantially as specified, and for the purpose set forth.

In testimony whereof we affix our signatures in presence of twowitnesses.

FREDERICK W. WINNER. TORRENCE F. MARTIN.

tVitnesses:

JOHN B. JEssUP, WILLIAM WINNER.

